If XXXXXXXXXXkW power is to be transmitted through a 2000 m long pipe in which a pressure of 9810 kN/m 2 is maintained at its inlet. If there is a pressure drop of 1962 kN/m2 over the entire length of...

If 220.725 kW power is to be transmitted through a 2000 m long pipe in which a pressure of 9810 kN/m²
is maintained at its inlet. If there is a pressure drop of 1962 kN/m2 over the entire length of the pipe and coefficient of friction is 0.0065, then determine the diameter of the pipe and the efficiency of power transmission.